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Note 17 - Subsequent Events (Details Textual) - Sexton Biotechnologies, Inc. [Member] - Subsequent Event [Member] $ in Millions | Aug. 09, 2021 USD ($)
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Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | $ 30
Business Acquisition, Percentage of Equity Issuable Shares Held in Escrow Accounts for Post Closing Claims | 10.00%

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- Definition Represents the percentage of equity issuable shares held in escrow accounts for post-closing indemnification claims. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
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- Details
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- Details
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